Lady Gaga revealed that she was bankrupt during her "Monster's Ball" tour, ContactMusic.com reported yesterday. The "Applause" singer admits that she suffered financial difficulties after she invested her entire $3 million fortune into staging at her concerts in a bid to launch her pop career back in 2009. ''I had $3 million in the bank to my name and I threw it all in to make my stage. So I was bankrupt during the show," Lady Gaga said. The comments come as part of a trailer for documentary that follows the Live Nation executive who Lady Gaga was keen to help take her career to the next level. Meanwhile, she came under fire for questionable spending through her Born This Way Foundation after accusations that $1.85 million was used on expenses while only $5,000 was reportedly donated as a grant.